EuroVisPosters2018

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https://diglib.eg.org/handle/10.2312/2632399

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Browsing EuroVisPosters2018 by Subject "Empirical studies in visualization"

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    An Eye-Tracking Study on Sparklines within Textual Context
    (The Eurographics Association, 2018) Ruchikachorn, Puripant; Rattanawicha, Pimmanee; Anna Puig and Renata Raidou
    Sparklines are placed in documents but their usability is rarely evaluated in their immediate context of paragraphs of text. We conducted an eye-tracking study to measure readability and understandability of four different conditions: two different sparkline chart types (bar and line charts) and two text languages (native and non-native languages). We found out that most participants out of 296 in total were not distracted by sparklines. Only 3.19% of the average reading time was spent looking at sparklines. There was no correlation between dwell time and data understanding, measured in a post-experiment quiz. The chart types did not have a significant effect on sparkline attention. However, compared with native textual context, sparklines in non-native text were more noticeable. The results of this study can be useful for future sparkline usage consideration.
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    The Impact of Visualizing Uncertainty on Train Trip Selection
    (The Eurographics Association, 2018) Wunderlich, Marcel; Ballweg, Kathrin; Landesberger, Tatiana von; Anna Puig and Renata Raidou
    Train trip planning means deciding on one of several travel connections. Possible train delays lead to uncertainties in the schedule connections and may influence the planning decisions. Although several designs for the visualization of the available train trips exist, it is still unclear how these designs and the visualization of delay uncertainty influence the decision making. We let 86 people decide ten times on different train trips using one of four designs, (not) visualizing delay uncertainty and with(out) temporal constraints. The results show that planning decisions depend on whether the design is visual or textual and on the availability of trip uncertainty visualization. In case of a temporal constraint, non-critical train connections are preferred.